2MASS J23154432-5018395

Basic data :
ICRF J231544.3-501839 -- BL Lac Origin of the objects types : (Ref) Object type as listed in the reference "Ref" (acronym) Object type linked to the acronym according to the original reference () Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases Other object types: Rad (2014ApJS,ICRF,...), BLL (2010ApJ), AGN (2011ApJ,CGRaBS,...), gam (1FGL,2FGL,...), Bla (2009A&A,[MGL2009],...), Bz? (2008ApJS), cm (AT20G,ATPMN), MIR (WISEA,WISE), QSO (2013ApJS), BL? (2021MNRAS), Q? (2021MNRAS), * (Gaia), NIR (2MASS) Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue), position angle (in degrees North celestial pole to East) quality : flag of quality E ≥ 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference ICRS coord. (ep=J2000) : 23 15 44.33035057 -50 18 39.7046902 (Radio) [ 0.0774383 0.1317 0 ] A 2020A&A...644A.159C Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue), position angle (in degrees North celestial pole to East) quality : flag of quality E ≥ 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference FK4 coord. (ep=B1950 eq=1950) : 23 12 54.53831035 -50 35 02.3797564 [ 0.0774383 0.1317 0 ] Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue), position angle (in degrees North celestial pole to East) quality : flag of quality E ≥ 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference Gal coord. (ep=J2000) : 334.67134377493 -60.50738642711 [ 0.0774383 0.1317 0 ] Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode" pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr) pm-dec : mu-dec (expressed in the ICRS system in mas/yr) [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg) quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality) bibcode : bibcode of the proper motion reference Proper motions mas/yr : -0.007 0.083 [0.145 0.144 90] A 2020yCat.1350....0G Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode" value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity) [error] : error of the corresponding value displayed before (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown) quality : flag of quality ( A=best quality -> E=worst quality, ∼=unknown quality) bibcode : bibcode of the value's origin Radial velocity / Redshift / cz : V(km/s) 159337 [~] / z(emission) 0.808 [~] / cz 242232 [~]    (Opt) D 2012ApJ...748...49S Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode" filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z (System) : may be AB (default is Vega) flux-value : value of flux or magnitude [error] : error value quality : flag of quality of the flux value ( A=best quality -> E=worst quality, {� } =unknown quality) MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4]) bibcode : bibcode of the flux reference Fluxes (12) : U (AB) 19.21 [0.14] D 2007ApJS..173..471M B (AB) 18.79 [0.15] D 2007ApJS..173..471M V (AB) 18.95 [0.33] D 2007ApJS..173..471M R 18.53 [~] D 2008ApJS..175...97H G 18.617903 [0.031872] C 2020yCat.1350....0G J (AB) 17.14 [0.05] D 2007ApJS..173..471M H (AB) 16.66 [0.05] D 2007ApJS..173..471M K 14.64 [0.09] C 2003yCat.2246....0C g (AB) 18.95 [0.05] D 2007ApJS..173..471M r (AB) 18.48 [0.05] D 2007ApJS..173..471M i (AB) 18.09 [0.05] D 2007ApJS..173..471M z (AB) 17.74 [0.05] D 2007ApJS..173..471M	SIMBAD within arcmin ', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay points in this preview 2MASS DSS SDSSXMMIRACIRISGALEX All (CDSPortal) Send to within arcsec The VizieR photometry tool allows for easy visualization of photometry points extracted around the Simbad position from photometry-enabled catalogues in VizieR. The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding. Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!).
Some important notes on this object about identifications and objects associations. notes: See also Specfind radio flux densities.

ICRF J231544.3-501839	GLEAM J231544-501823	SUMSS J231544-501840	WMAP J2315-5019
AT20G J231544-501839	IERS B2312-505	SUMSS J231544-501839	WMAP J2315-5014
AT20G J231544.2-501839	IVS B2312-505	TGSSADR J231544.3-501836	[MEM2008] 306
ATPMN J231544.3-501839	LCS1 J2315-5018	TIC 355365633	[MGL2009] BZB J2315-5018
CGRaBS J2315-5018	LCS2 J2315-5018	WISEA J231544.33-501839.7	[MML2015] 5BZB J2315-5018
CRATES J231545-501842	2MASS J23154432-5018395	WISE J231544.32-501839.5	[SRC2012b] J2315-5018
1FGL J2315.9-5014	PKS 2312-505	WISE J231544.33-501839.7	Gaia DR3 6502743115082129280
2FGL J2315.7-5014	PKS J2315-5018	WMAP 204	Gaia DR2 6502743115082129280
3FGL J2315.7-5018	PMN J2315-5018	WMAP J2315-5017
4FGL J2315.6-5018	SPASS J231539-501845	WMAP J2315-5018

References (82 between 1850 and 2024) (Total 82) Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system). Follow new references on this object

Collections of Measurements

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : ICRF J231544.3-501839

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